The overall development of RF technology must first meet the primary market requirements, which include achieving system modularization and integration while improving performance, as well as reducing the size and power consumption of RF circuits by increasing integration density. Building on this foundation, it is also essential to enhance the application capabilities of RF circuits in multi-standard and multi-mode environments based on the advancement of digital circuits. This is commonly referred to as "software-defined radio technology.".With the continuous introduction of broadband wireless systems, the demand for channel utilization efficiency is increasing, posing new challenges to channel coding technologies and air interface technologies. For the radio frequency section, higher linearity and lower in-band and out-of-band noise requirements are demanded. The challenges for RF chips also include higher receiver sensitivity and lower noise figures, with excellent performance being the most fundamental requirement for products. An important means to achieve high performance is to increase the complexity of RF circuits, which generally include three parts: transceivers, amplifiers, and switches. The current RF circuit is fundamentally a mixed signal circuit dominated by analog circuits. Although digitization is a trend in RF circuit chips nowadays, RF module technology is difficult to do without the support of high-performance analog technology. Therefore, the increasing complexity of RF circuits poses many challenges to reducing the size of RF chips. The RF end must focus on reducing power consumption, accelerating the integration of different processes, and lowering costs. This can be achieved in two directions, one is to adopt a new SIP architecture, which integrates chips from different processes into one packaging module, such as front-end amplifiers and antenna receivers! Switch or laminate the amplifier and transceiver onto the same substrate to create a module. https://www.signalpoweramplifier.com

The integration of baseband chips and RF chips has always been a persistent topic in the mobile phone industry. However, the integration of baseband chips and RF chips is not currently a topic of real demand. Sicon Laboratories has achieved single-chip design in the industry, but it has not been well received in the market and has been acquired. Many foreign RF professional manufacturers still have a considerable share on the mobile phone platform. Therefore, although the topic of complete integration and integration of RF chips and baseband chips will continue to exist, there is no real motivation to invest in this area in the next three years, "said the technical director of Dingxin Company.People say. However, from the perspective of future development trends, the integration of TD-SCDMA RF module chips with baseband chips is an inevitable trend. Innolux believes that for architecture, certain value-added applications related to radio frequency will become the most likely part of the fusion of radio frequency transceiver chips. This architectural transformation will gradually shift the traditional RF transceiver towards an RF multi service platform for multiple applications, becoming an integration of transceiver and tuner, including GPS, digital broadcasting, and more 4W high power RF chip

The data processing circuit consists of AD digital to analog conversion ADC0809, AT89C51 microcontroller, and display circuit. ADC0809 is an eight bit eight channel single-chip AD successive approximation converter made using CMOS technology. The successive approximation converter includes one comparator, one digital to analog conversion controller, one successive approximation register (SAR), and one logic control unit. The successive approximation in the conversion is controlled by the logic unit according to the principle of division. Its principle is simple, easy to implement, and there is no delay problem. AT89C51 is a high-performance 8-bit microcontroller with 4K bytes of FLASH programmable erasable read-only memory. Its instruction system is fully compatible with MCS-51, making it easy to apply in various control fields. In the design, P0 port serves as the data port, P1 port serves as the switch input/output control, P2 serves as the display module and address control line for ADC0809, and the IN terminal serves as the keyboard interrupt input terminal, thus forming a simple microcontroller measurement system. The voltage signal after LM331F/conversion is sent to ADC0809 for digital to analog conversion. The AT89C51 microcontroller reads the converted data in real time, calculates it through internal software, and sends the results to the display screen for display. The displayed content mainly includes the current of each power amplifier tube, power supply voltage, output power, and reflected power. The input switch detection signal is directly sent to the P1 port of AT89C5 after photoelectric isolation. The display circuit adopts a 16x2 character dot matrix LCD display module, which has 192 built-in characters (5x7 dot font), strong indication function, can form various input, display and shift modes, and has the characteristics of simple interface with MCS-51 series microcontrollers and simple software programming.